Sections examined show scanty omental fibroadipose tissue infiltrated by malignant epithelial tumor arranged in irregular glandular structures and nests. The tumor is moderately differentiated, showing desmoplastic stromal reaction.
Immunostaining was done with appropriate positive and negative controls and revealed: retained nuclear expression of MLH1, PMS2, MSH2, and MSH6 in tumor cells.
Referred block for immunostaining of omentشl lesion, suspected ovarian carcinomatosis related to primary ovarian cancer.
One referred paraffin block.
Omentum, lesion, biopsy (referred block):
Comment: